Seller's rhymes with:
bestsellers, bookcellars, cellars, resellers, sellars, sellers, sellers', bestsellers, bookcellars, cellars, dwellers, ehlers, ellers, fellers, heller's, keller's, propellers, resellers, sellars, sellers, sellers', spellers, teller's, tellers, zellars, zellers
Seller's sounds like:
sailor's, sailors, sailors', salaries, salyers, saylors, schiller's, scholar's, scholars, schoolers, schoolwork, sclerosis, sellars, sellars's, sellers, sellers', sizzlers, skylark, skylarks, slorc, slurs, solares, solaris, solarz, sollars, sollers